摘要 |
In a heat-sensitive recording material incorporating a colorless or pale-colored basic dye and a color acceptor which is reactive with the basic dye to form a color when contacted therewith, the recording material characterized in that at least one compound represented by the formula [I] is contained in a heat-sensitive recording layer <IMAGE> [I] wherein X is -O- or -COO-, R1 to R4 are each hydrogen atom, alkyl having 1 to 8 carbon atoms, aryl having 6 to 10 carbon atoms, aralkyl having 7 to 9 carbon atoms, chlorine atom, acetyl, propionyl, methoxy, methylthio, methoxycarbonyl, cyano, nitro or cyclohexenyl, substituents R1 and/or R2 or substituents R3 and R4 may link together to form aromatic ring(s), n is an integer of 1 to 10.
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申请人 |
KANZAKI PAPER MFG CO LTD;SANKO KAIHATSU KAGAKU KENKYUSHO CORPORATION |
发明人 |
SUZUKI, TOSHITAKE;ARAI, NAOTO;AOYAGI, SHOJI;SAITO, TORANOSUKE;KITANI, MASAKATU;ISHIBASHI, TAKASHI |